Can I enter Canada with a study visa then change to a work visa? 

Yes, it is possible to enter Canada with a study visa (study permit) and later transition to a work visa, specifically a Post-Graduation Work Permit (PGWP).

Here's how this process typically works:

1. Completion of Studies: After completing your studies, you may be eligible to apply for a PGWP, which allows you to work in Canada after graduation.
2. Post-Graduation Work Permit (PGWP): The PGWP is typically issued for a duration that matches the length of your academic program, up to a maximum of three years. It allows you to work in Canada and gain valuable Canadian work experience.
3. Work Experience: While on a PGWP, you can gain work experience in Canada, which can be valuable for future immigration and career opportunities.
4. Transition to Other Work Visas: Depending on your work experience and career goals, you may explore other work visas, such as the Express Entry system for permanent residency or work permits related to specific job offers or industries.

It's important to note that eligibility for a PGWP and other work permits may be subject to specific criteria, such as the duration of your program, the type of program and the educational institution. Additionally, immigration policies and eligibility criteria can change, so it's essential to check the official Immigration, Refugees and Citizenship Canada (IRCC) website for the most up-to-date information.